<!DOCTYPE html>
<html>

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Sugar</title>
</head>

<body>
  <!-- hidden 属性可以快速隐藏一个元素 -->
  <h1 hidden>大标题1</h1>
  <h1>大标题2</h1>
</body>

</html>